package com.sfac.springCloudTest.service.impl;


import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;

import com.sfac.springCloudTest.dao.CityDao;
import com.sfac.springCloudTest.service.CityService;
import org.apache.commons.lang3.StringUtils;
import org.sfac.common.vo.Result;
import org.sfac.common.vo.Search;
import org.sfac.test.entity.City;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Collections;
import java.util.Date;
import java.util.List;
import java.util.Optional;

@Service
public class CityServiceImpl implements CityService {
    @Autowired
    private CityDao cityDao;

    @Override
    @Transactional
    public Result<City> insertCity(City city) {
        City temp = cityDao.getCityByCityName(city.getCityName());
        if (temp != null) {
            return new Result<>(Result.ResultStatus.FAILD.code, "City name is repead.");
        }

        city.setDateCreated(new Date());
        city.setDateModified(new Date());
        cityDao.insertCity(city);
        return new Result<>(Result.ResultStatus.SUCCESS.code, "Insert success.", city);
    }

    @Override
    @Transactional
    public Result<City> updateCity(City city) {
        City temp = cityDao.getCityByCityName(city.getCityName());
        if (temp != null && temp.getCityId() != city.getCityId()) {
            return new Result<>(Result.ResultStatus.FAILD.code, "City name is repead.");
        }

        city.setDateModified(new Date());
        cityDao.updateCity(city);
        return new Result<>(Result.ResultStatus.SUCCESS.code, "Update success.", city);
    }

    @Override
    @Transactional
    public Result<Object> deleteCityByCityId(int cityId) {
        cityDao.deleteCityByCityId(cityId);
        return new Result<>(Result.ResultStatus.SUCCESS.code, "Delete success.");
    }

    @Override
    public City getCityByCityId(int cityId) {
        return cityDao.getCityByCityId(cityId);
    }

    @Override
    public City getCityByNames(String cityName, String localCityName) {
        return cityDao.getCityByNames(cityName, localCityName);
    }

    @Override
    public List<City> getCitiesByCountryId(int countryId) {
//		return cityDao.getCitiesByCountryId(countryId);
        return Optional
                .ofNullable(cityDao.getCitiesByCountryId(countryId))
                .orElse(Collections.emptyList());
    }

    @Override
    public PageInfo<City> getCitiesBySearch(Search search) {
        // 初始化 seach 对象
        search.init();
        // 开始分页
        PageHelper.startPage(search.getCurrentPage(), search.getPageSize());
        // 返回分页对象
        return new PageInfo<>(Optional
                .ofNullable(cityDao.getCitiesBySearch(search))
                .orElse(Collections.emptyList()));
    }
}
